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Finding the Fourth Proportional to 131,693.88, 197,572.26 and 42,947.46

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Solution

The fourth proportional to 131,693.88, 197,572.26 and 42,947.46 is: 64,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693.88 : 197,572.26 = 42,947.46 : x
  2. Step 2: Convert to fraction form
    131,693.88/197,572.26 = 42,947.46/x
  3. Step 3: Cross multiply
    131,693.88x = 197,572.26 × 42,947.46
  4. Step 4: Simplify right side
    131,693.88x = 8,485,226,733.46
  5. Step 5: Solve for x
    x = 8,485,226,733.46/131,693.88
  6. Step 6: Final answer
    x = 64,431.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.